任学平, 关丽坤, 张乃洪, 周秉利. 复合结构壳体蠕变变形有限元研究[J]. 力学与实践, 2005, 27(3). DOI: 10.6052/1000-0992-2004-324
引用本文: 任学平, 关丽坤, 张乃洪, 周秉利. 复合结构壳体蠕变变形有限元研究[J]. 力学与实践, 2005, 27(3). DOI: 10.6052/1000-0992-2004-324
FEM RESEARCH OF SHELL CREEP DEFORMATION FOR COMPOSITE STRUCTUR[J]. MECHANICS IN ENGINEERING, 2005, 27(3). DOI: 10.6052/1000-0992-2004-324
Citation: FEM RESEARCH OF SHELL CREEP DEFORMATION FOR COMPOSITE STRUCTUR[J]. MECHANICS IN ENGINEERING, 2005, 27(3). DOI: 10.6052/1000-0992-2004-324

复合结构壳体蠕变变形有限元研究

FEM RESEARCH OF SHELL CREEP DEFORMATION FOR COMPOSITE STRUCTUR

  • 摘要: 基于蠕变理论,采用有限元数值计算方法,用ANSYS作为计算平台,建立了壳体结构的蠕变变形计算模型. 对由耐火材料是镁碳砖炉衬和炉壳组成的复合结构转炉,由于高导热率的镁碳砖广泛使用,引起转炉炉壳的温度升高,导致转炉不同程度地出现了炉壳蠕变变形,致使炉壳使用寿命缩短. 研究转炉炉壳蠕变变形的状态及分布规律,可为控制炉壳蠕变变形、延长炉壳使用寿命提供依据. 运用所述的有限元计算模型,对复合结构的转炉炉壳的蠕变变形行为进行模拟,模拟结果与现场测量值基本吻合.

     

    Abstract: Based on creep deformation theory, using finiteelement numerical calculating method with ANSYS commercial software ascalculation platform, the creep deformation computational model for compositestructure shell is established. For composite structure blast oxygenfurnace (BOF) composed of magnesia-graphite refractory,due to the high thermal conductivity of magnesia-graphiterefractory, a high temperature will appeared on the shell in theBOF. This results in shell creep deformation to a greater or lesserdegree and reduces its service life. The BOF shell creep deformation is studiedin this paper, the result provides some hintsto control shell creep deformation and prolong shellservice life. With the finite element computational model,the simulation resultsagree quite well with the spot measurements.

     

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